How does a out of date cartidge work? -

I have some HPs but I dont want to put them in the printer if there out of date as then it may mess the printer up - or will it?

It will be ok if they have been stored well - not too hot. the print quality may be poorer, you may not even notice. Your printer will be fine, as the whole head is changed with a new cartridge. Any problems will be removed when you change the ink cartridge

If you put them in, they probably wont work. A embedded chip on the cartridge lets the computer know it has expired. Don t buy HP if you can help it. I ve heard of ways around it but have not been successful myself. 1 is to remove battery in printer. Another is to modify the driver files. Good luck. --Simon enagt.com studentsolution.net

Clean the heads with a little rubbing alcohol on a cotton swab and they should work like a charm. The only reason they have dates is because the ink sort of turns into a gum over time, which will stop it from flowing when it needs to. Alcohol will dissolve that gum.

HP cartridges have the print head built in. If the ink in them is dried up they simply will not print. A new set will then still work as they have their own print head.

If they have not dried up they should be ok.